From 902f3763af4931c5c04c47d10e4d24dba96487cd Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 18 Jun 2015 17:27:25 +0200
Subject: Move path_mtime to filesystem, rename file_mtime, follow symlinks

---
 build/search.cxx |  4 +++-
 build/target     |  8 ++++----
 build/target.cxx | 11 ++++++++---
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/build/search.cxx b/build/search.cxx
index ee6e20f..feff123 100644
--- a/build/search.cxx
+++ b/build/search.cxx
@@ -7,6 +7,8 @@
 #include <utility>  // move()
 #include <cassert>
 
+#include <butl/filesystem>
+
 #include <build/scope>
 #include <build/target>
 #include <build/prerequisite>
@@ -78,7 +80,7 @@ namespace build
         f += e;
       }
 
-      timestamp mt (path_mtime (f));
+      timestamp mt (file_mtime (f));
 
       if (mt == timestamp_nonexistent)
         continue;
diff --git a/build/target b/build/target
index 9388065..54b9daf 100644
--- a/build/target
+++ b/build/target
@@ -520,10 +520,6 @@ namespace build
                   const char* name_prefix = nullptr,
                   const char* name_suffix = nullptr);
 
-  protected:
-    virtual timestamp
-    load_mtime () const;
-
   public:
     static const target_type static_type;
 
@@ -538,6 +534,10 @@ namespace build
   public:
     using path_target::path_target;
 
+  protected:
+    virtual timestamp
+    load_mtime () const;
+
   public:
     virtual const target_type& type () const {return static_type;}
     static const target_type static_type;
diff --git a/build/target.cxx b/build/target.cxx
index 3810092..1040443 100644
--- a/build/target.cxx
+++ b/build/target.cxx
@@ -4,6 +4,8 @@
 
 #include <build/target>
 
+#include <butl/filesystem>
+
 #include <build/scope>
 #include <build/search>
 #include <build/algorithm>
@@ -268,11 +270,14 @@ namespace build
     return dir / path_type (move (n));
   }
 
-  timestamp path_target::
+  // file_target
+  //
+  timestamp file::
   load_mtime () const
   {
-    assert (!path_.empty ());
-    return path_mtime (path_);
+    const path_type& f (path ());
+    assert (!f.empty ());
+    return file_mtime (f);
   }
 
   // Search functions.
-- 
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